Low power IC card interface

General description The TDA8023 is a complete cost-efficient, low-power analog interface for synchronous or asynchronous smart cards. It can be placed between the card and the microcontroller with very few external components to perform all supply, protection and control functions. Features and

文件：170.11 Kbytes 頁(yè)數(shù)：32 Pages

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Low power IC card interface

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Low power IC card interface

General description The TDA8023 is a complete cost-efficient, low-power analog interface for synchronous or asynchronous smart cards. It can be placed between the card and the microcontroller with very few external components to perform all supply, protection and control functions. Features and

文件：170.11 Kbytes 頁(yè)數(shù)：32 Pages

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低功耗IC卡接口

TDA8023是一款完整的高性價(jià)比、低功耗模擬接口，用于同步或異步智能卡?？梢詫⑺胖迷诳ㄆ臀⒖刂破髦g，只需極少量的外部元件便可實(shí)現(xiàn)所有電源、保護(hù)和控制功能。 I2C總線控制型IC卡接口采用TSSOP28封裝\n電源電壓：2.7 V至6.5 V\n獨(dú)立電源電壓VDD(INTF)可用于微控制器的信號(hào)接口\n器件不工作時(shí)可提供關(guān)斷輸入，具有極低的功耗\n卡片激活時(shí)提供低功耗模式\nDC-DC轉(zhuǎn)換器用來(lái)生成VCC（根據(jù)電源電壓和卡片電壓自動(dòng)選擇容性倍頻器、三倍器、電感或跟隨器）\n一條受專門保護(hù)的半雙工雙向緩沖I/O線，限流為+-15 mA，最大頻率為1 MHz\n兩條副卡I/O線，由I2C總線（C4和C8）控制\nVCC調(diào)節(jié)：5 V、3 V或1.8 V +- 8%，ICC< 55 mA，電流尖峰為40 nAs（最高20 MHz），上升和下降時(shí)間受;

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